Biphenyl-4,4'-disulfonylchlorid, (1,1'-Biphenyl)-4,4'-disulfonyl dichloride, 4,4'-Diphenyldisulfonyl dichloride, 4,4'-biphenyldisulphonyl dichloride, p,p'-Diphenyldisulfonyl chloride, [1,4'-disulfonyl dichloride, biphenyl-4,4'-disulfonyl dichloride, 4,4'-bis(biphenylsulfonyl) chloride, 4,4'-Biphenyldisulfonyl Dichloride, 4,4'-Biphenylylenedisulfonyl chloride, 4,4'-Biphenyldisulfonyl chloride, 4,4'-Diphenyldisulfonyl Chloride, [1,1‘-Biphenyl]-4,4‘-disulfonyl dichloride, biphenyl-4,4'-disulfonyl chloride